Adjustable wrench.



0. P. JOHNSON.

ADJUSTABLE WRENCH. APPLiOATION FILED DBG.14, 1909.

957,214, Patentd May 10, 1910.

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ANDREW D. GRAHAM co. PNOTO-LIITHOGRAPHERS. wAsmNmoN UNKTF; TATES CHARLES P. JOHNSON, OF EUREKA, KANSAS.

ADJUSTABLE WRENCH.

T 0 all whom "it may concern:

Be it known that 1, CHARLES P. JOHNSON, a citizen of the United States, residing at Eureka, in the county of Greenwood and State of Kansas, have invented certain new and useful Improvements in Adjustable Wrenches, of which the following is a specification.

My invention relates to improvements in adjustable wrenches, and my obj eet is to provide a simple, strong and compact wrench having a wide range of adjustment so that it may be set to fit the smallest buggy-axle nut or the largest wagon-axle not.

A further object is to provide a wrench which will firmly grip the nut so that the latter need not be handled with the fingers while removing it from the axle, or after it removed from the axle.

Referring now to the accompanying drawing, which illustrates the invention: Figure 1 shows a plan view of the wrench. Fig. 2 is a longitudinal section on line IIII of Fig. 1. Figs. 3 and 4 are transverse sections on lines III1II and IV-JV, re spectively of Fig. 2.

In carrying out the invention, I employ a member 1, forming a portion of the handle oi: the wrench, and provided at one end with a jaw 2 having a notch 3 to receive one side of the nut. 4 designates a second member forming the remainder of the wrench handle, and provided with a jaw 5, adjacent jaw 2 and like the same, provided with a notch 6, member 4 is provided with two longitudinal slots 7 and 8, and a longitudinal rib 9 which latter fits in a longitudinal groove 10 in member 1. 11 designates an upturned bearing integral with the opposite end of mem ber 4.

12 designates a nut extending upward from section 1 through slot 7 in member 4, and having shoulders 13 overlapping said member to retain it in position upon section 1. Nut 12 is secured to member 1 by a nut 14, and has shoulders 15 engaging the opposite side of said member from nut 14 to prevent the latter from drawing the nut downward and thereby causing 1ts shoulders 13 to bind upon the upper surface of the member 4. Nut 12 is assisted in holding mem- Specification of Letters Patent.

Application filed December 14, 1969.

Patented May 10, 1910. Serial No. 533,104.

bers'l and 4 together by a knob 16 swiveled to the wrench so that the latter may be readily rotated when applying or removing a nut from the axle. Knob 16 has a reduced shank 17 extending through member 1 and slot 8, and provided at its upper end with a nut 18 to hold the knob in place.

19 designates a screw j ournaled in bearing 11 and engaging nut 12. Said screw is provided at one end with a handle 20 engaging one side of bearing 11, and a shoulder 21 engaging the opposite side of said bearing to prevent longitudinal movement of the screw independently of member 4. By turning the screw in one direction jaw 5 will be adjusted toward jaw 2, and by turning said screw in a reverse direction, jaw 5 will be drawn away from jaw 2, as will be readily understood.

The nut 12 and shank 17 are relieved of shearing stress by the longitudinal rib 9 fitting within the groove 10.

From the above description it is apparent that I have produced a wrench which is simple in construction, and well adapted for the purpose intended.

- Having thus described my invention, what I claim is:

1. A wrench consisting of a member, a jaw at one end of said member, a second member slidablymounted upon the first member and forming in connection therewith a handle for the wrench, a jaw on one end of the second member adjacent the jaw on the first member, a bearing at the opposite end of said second member, a nut fixed to the first member and extending through a longitudinal slot in the second member, said nut having shoulders overlapping the second member to retain it in position upon the first member, a knob swiveled to the handle for revolving the wrench, said knob having a shank extending through the members to assist the nut in holding said members together, a screw ournaled in the bearing and engaging the nut, and means for turning said screw.

2. A wrench consisting of a member having a longitudinal groove, a jaw at one end of said member, a second member slidably engaging the first member and provided with a rib fitting into the longitudinal slot thereof, a jaw on one end of the second member In testimony whereof I affix my signature, adJacent the ew on the first member, a bear- 1n the presence of two wltnesses. ing at the opposite end of the second mem- HARLE P HY l N. her, a nut pr0 ect1ng from the first member 0 S J0 SO through the second member, a screw 0n1'- VV1tnesses: nalecl 1n the beanng and engagmg sald nut, MINNIE E. STILWELL,

and means for turning said screw. WALTER JOHNSON. 

